1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Llana [10]
4 years ago
7

The universe is made up of (lol)

Chemistry
2 answers:
bija089 [108]4 years ago
8 0

Answer:

D

Explanation:

zhenek [66]4 years ago
7 0
It is billions. There had been starts from the beginning of era.
You might be interested in
Which principal is exemplified by studying a modern river to learn about how ancient rock layers form?
faust18 [17]
A- unifromitariansim
7 0
3 years ago
How does changing the pressure affect the chemical reaction?
olasank [31]
A is the answer
Hope it helps :)
6 0
4 years ago
C12H22O11 is an example of a(n):
ycow [4]

Answer:

molecular compound

Explanation:

it has two or more nonmetal elements and are covalently bonded

5 0
3 years ago
Draw the major organic product(s) for the reaction. The starting material is a benzene ring with one substituent. The substituen
Mice21 [21]

Answer:

See Explanation

Explanation:

In electrophilic aromatic substitution, the benzene ring undergoes substitution when it is reacted with suitable electrophiles.

The products of electrophilic aromatic substitution depends on the substituents already present on the benzene ring. Some substituents activate the ring towards electrophilic substitution and direct the incoming electrophile to the ortho and para positions on the ring while some substituents deactivate the benzene ring towards electrophilic substitution and direct the incoming electrophlle to the meta position on the ring.

The amide substituent is moderately activating and is an ortho, para director hence the products shown in the mage attached to this answer.

3 0
3 years ago
The measure of the amount of dissolved salt in a liquid sample is called
Alex Ar [27]
<span>The amount of dissolved salt in the liquid sample is measured and reported as salinity. The salinity is usually measured in parts per thousand (ppt). The salinity of ocean averages 35 ppt while that of the river averages 0.5 ppt or less. In other terms, the word salinity is the saltiness. </span>
6 0
3 years ago
Read 2 more answers
Other questions:
  • Which must be the same when comparing 1 mol of oxygen gas, O2, with 1 mol of carbon monoxide gas, CO?
    8·2 answers
  • The table shows the thermodynamic data for a reaction. Thermodynamic Data Energy of the Reactants Energy of the Products Activat
    9·2 answers
  • Which type of orbitals overlap to form the sigma bond between c and cl in ch3cl?
    8·1 answer
  • What gases occur in the same percentages throughout the layers of the atmosphere?
    9·1 answer
  • How many electrons, protons, neutrons, and what is the atomic number and atomic mass (if any) does Fluoride have?
    12·2 answers
  • At the beginning of the industrial revolution in 1850, the CO2concentration was 280 ppm. Today, it is 410 ppm.
    9·1 answer
  • What formula was used to find the answer
    6·1 answer
  • If 4.00 moles of O2 occupies a volume of 5.0 L at a particular temperature and pressure, what volume will 3.00 moles of oxygen g
    15·1 answer
  • Which Group is in the leftmost column on the periodic table?
    15·2 answers
  • What error, if any, would the calculated density of the solid have if the material had a hollow center?.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!